JP2622081B2 - Cleaning dust cloth and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning cloth mainly used for cleaning painted surfaces of automobiles.

[0002]

2. Description of the Related Art Conventionally, moisture, oil, or resin is previously applied to a flexible base cloth such as a woven or nonwoven fabric, and the wiped dust is adhered to the moisture or oil to cause the dust to enter the air. A polishing cloth processed so as not to be scattered is known. If a moistened polishing cloth is left in the open air for a long time, the moisture will evaporate and the effect of attaching dust will disappear,
At present, it is not used for applications other than single-use disposable applications such as hermetically sealed hand wiping, and is therefore impregnated with oil or resin for industrial uses such as pre-cleaning painted surfaces such as automobiles. The applied polishing cloth is applied.

As a polishing cloth conventionally used on an industrial scale, an adhesive made of a resin component is applied to the surface of a base cloth (Japanese Utility Model Application Laid-Open No. 54-172574), and a long-chain hydrocarbon as a resin component is used. (Japanese Patent Publication No. 58-3693) impregnated with a polymer compound consisting of a modified natural resin as an oil and fat and an oil and wax as an additive, having a molecular weight of 500 to 10,000 as a resin. A resin obtained by impregnating a base fabric with a synthetic resin (polybutene, polybutylene, etc.) (Japanese Utility Model Laid-Open No. 59-171665) is known.

[0004]

However, in the prior art disclosed in Japanese Utility Model Application Laid-Open No. 54-172574, a thick adhesive layer is formed on the surface of the base cloth, so that dust is not captured. Suitable, but the thickness of the pressure-sensitive adhesive layer impairs the flexibility of the base cloth, making it impossible to effectively wipe the dust-removed surface, etc., and that the adhesive moves from the surface of the base cloth to the dust-removed surface. Has problems.

[0005] Further, in the above-mentioned Japanese Patent Publication No. 58-3693, a mixture of the above three compounds is chlorinated trichloroethane for the purpose of impregnating a base cloth with the above-mentioned polymer compound, modified natural resin and oil wax. Is dissolved in a hydrocarbon solvent consisting of, and the base fabric is immersed in this solution, so that trichloroethane is volatilized in the immersion step, which is not preferable in terms of worker health and environmental conservation. Trichloroethane is cited as one of the causes of the destruction of the ozone layer surrounding the earth.

Further, the one disclosed in Japanese Utility Model Laid-Open Publication No. Sho 59-171665 also has a molecular weight of 500-10.
000 is dissolved in a chlorine-based solvent such as trichloroethane, and the base cloth is immersed in the solution to impregnate the viscous synthetic resin. have.

In view of this, it is conceivable to use an adhesive resin which is made into an emulsion so as to be dissolved in water, and impregnated into a base fabric with a mixture of some additives. Thus, by using water as a solvent,
Without using a harmful organic solvent such as trichloroethane as in the related art, it is possible to easily impregnate the base cloth with a resin having tackiness by immersing the base cloth in the above emulsion, thereby improving the working environment and environment. This is convenient for conservation.

However, as described above, acrylic,
When a vinyl acetate-based or acryl-vinyl acetate copolymer-based resin is formed into an emulsion and applied to a base fabric, the emulsion is cured by contact with air, and as a result, a new adhesive property cannot be exhibited effectively. Issues are raised.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has as its object to provide a cleaning and dust-removing cloth which has no problem in working environment and environmental preservation and has more excellent adhesive performance. It is an object.

[0010]

According to the first aspect of the present invention, there is provided a cleaning and dusting cloth comprising a base cloth made of a woven cloth, a nonwoven cloth or a knitted cloth, and a base and an adhesiveness improving / curing agent mixed with the base cloth. A wiping dust cloth impregnated with the formed resin composition, wherein the base is an emulsion of a polybutene resin or an emulsion of a polyisobutylene resin, or a mixture of the two emulsions, and the adhesiveness improving and curing agent Is an emulsion of a thermoplastic resin having a softening point of 60 ° C. to 150 ° C., and is characterized in that 5 to 100 parts by weight of the adhesiveness improving and curing agent is added to 100 parts by weight of the base. It is assumed that.

According to a second aspect of the present invention, there is provided a method for producing a cleaning dust-removing cloth, comprising: a base comprising an emulsion of a polybutene resin, an emulsion of a polyisobutylene resin, or a mixture of the two emulsions; Preparation of a resin composition mixed with an emulsion of a thermoplastic resin having a softening point of 60 ° C. to 150 ° C., and then diluting the resin composition with water having a weight of 1.0 to 10 times the weight of the resin component. The diluted mixed solution is impregnated into a woven fabric, a nonwoven fabric, or a knitted fabric, the base fabric impregnated with the diluted mixed solution is dehydrated, and the dehydrated base fabric is dried. Is what you do.

According to a third aspect of the present invention, there is provided a method for producing a cleaning dust cloth according to the second aspect, wherein the dehydrated base cloth is dried at 70 ° C to 180 ° C. It is characterized by the following.

[0013]

According to the first aspect of the present invention, a viscous polybutene resin or a polyisobutylene resin having a non-drying property and a non-curing property, which does not deteriorate even in an emulsion state, is used as a base. Since it is applied, water can be applied as a solvent in a state where the tackiness of the resin is not impaired, and the harmful effects of using an organic solvent as in the related art can be avoided, and the resin composition can be used. Further, since an emulsion of a thermoplastic resin having a softening point of 60 ° C. to 150 ° C. is provided as an adhesive strength improving and curing agent, the adhesiveness of the adhesive component in the resin composition is improved, and such an adhesive component is impregnated. By wiping the dust-removed surface with the removed wiping dust cloth, dust can be satisfactorily removed without being scattered in the air.

Further, since the above-mentioned thermoplastic resin which exhibits curability at room temperature is added to a polybutene resin or polyisobutylene resin which is excellent in tackiness but does not cure, a binder component is formed. Transfer of the caking component on the base fabric to the non-dust-removing surface is effectively suppressed, and as a result, the caking component on the base fabric has both caking property and non-migration property.

[0015] Since the amount of the adhesive strength improving and curing agent added to the base is 5 parts by weight or more, the resin composition contained in the base and the adhesive strength improving and curing agent becomes too soft. Migration will not occur, and
Since the content is not more than 00 parts by weight, the resin composition does not become too hard, retains appropriate adhesiveness, has no migration property, and can clean the dust-removed surface satisfactorily.

According to the method for producing a cleaning dust cloth of the second aspect, a resin comprising a non-drying, non-curing and viscous resin base and an adhesiveness improving and curing agent. A diluted mixture is prepared by diluting the composition with 1 to 10 times the weight of the resin component, and the diluted mixture is impregnated into the base fabric. For example, the inconvenience that the viscosity of the diluted mixed solution is too viscous and the impregnation of the resin composition into the base fabric cannot be uniformly avoided is avoided. The inconvenience that the resin component amount in the liquid becomes too thin and the resin component is not effectively impregnated into the base fabric is avoided,
The resin composition is appropriately impregnated into the base fabric.

When the impregnation of the resin composition into the base cloth is completed, the base cloth is dehydrated and dried, so that the base cloth reliably retains the caking component due to the evaporation of water.

According to the third aspect of the present invention, since the dewatered base fabric is dried at 70 to 180 ° C., the heat in the resin composition is heated by this temperature range. The plastic resin component is softened and melted, and is fused with the base fabric. In other words, a polybutene resin or a polyisobutylene resin and a curing agent having excellent curability and an adhesive force improving and curing agent are integrated in a molten state, and an adhesive force in which migration is effectively suppressed is produced. As a result, the resin composition is The base fabric is reliably impregnated.

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view illustrating a method for manufacturing a cleaning dust cloth according to the present invention, wherein (a) is a step of impregnating a base cloth with a resin composition, and (b) is a step after the impregnation step. (C) shows a drying step of the base cloth after the dehydrating step. As shown in this figure, in the present invention, a predetermined amount of a base material 1 in which an emulsion of a plurality of resins having caking properties is mixed in advance is loaded into a mixing tank 5 as shown in FIG. You. Further, a predetermined amount of the adhesive strength improving and curing agent 2 is loaded into the mixing tank 5, and the base 1 and the adhesive strength improving and curing agent 2 form the resin composition 10. Thereafter, a predetermined amount of water 3 is further mixed into the mixing tank 5 to dilute the resin composition 10 into a dilution mixture M.

The mixing blades 51 provided in the mixing tank 5 are rotationally driven while a predetermined amount of the base 1, the adhesive strength improving / curing agent 2 and the water 3 are charged in the mixing tank 5, respectively. The above three components (dilution mixture M) are stirred until they are sufficiently uniform. After the diluted mixed liquid M is sufficiently stirred, the rotation driving of the mixing blade 51 is stopped. This diluted mixture M
The temperature in the tank at the time of stirring is kept at room temperature.

When the diluted mixture M in the mixing tank 5 is uniformly mixed, the rotation of the mixing blade 51 is temporarily stopped, and the base cloth 4 is immersed in the diluted mixture M. The immersion of the base cloth 4 in the diluted mixed solution M may be performed one by one or in a state where a plurality of sheets are stacked. However, if too many base cloths 4 are stacked, it becomes difficult for the diluted mixed liquid M to reach the middle base cloth 4, so that it is preferable to limit the number of sheets to at most several. In order to sufficiently impregnate the base cloth 4 with the diluted mixed liquid M, the rotational driving of the mixing blade 51 may be continued.

When the operation of impregnating the base cloth 4 with the diluted mixed solution M for a predetermined time is completed, the impregnated base cloth 4a is taken out of the mixing tank 5, and as shown in FIG. Is passed through, and a dehydration process of pressing between the rollers 6 is performed to form a dehydrated base cloth 4b. Thereafter, as shown in (c), the dewatered base cloth 4b is loaded into an appropriate hot-air drier 7, supplied with hot air at 70 ° C. to 180 ° C. and dried, and the wiping dust cloth 4c according to the present invention is provided. become. By supplying the hot air as described above, it becomes possible to melt the resin component having a particle diameter of about 0.4 μm applied to the dewatered base fabric 4b and to penetrate into the fibers.

In this embodiment, the supply of the base material 1 and the adhesive strength improving / curing agent 2 to the base cloth 4 is performed by immersing the base cloth 4 in the diluted mixed solution M filled in the mixing tank 5. However, the manufacturing method of the cleaning dust cloth of the present invention is not limited to such a dipping treatment of the base cloth 4, and the diluted mixed solution M is sprayed on the base cloth 4. You may make it.

In this embodiment, the dehydration treatment is
The impregnated base cloth 4a is passed through a pair of rollers 6, but the present invention is not limited to such a dewatering process using the rollers 6, for example, centrifugal separation or heat pressing. May be used for dehydration. When the impregnated base cloth 4a is dehydrated by centrifugation, a heat treatment of the dehydrated base cloth 4b is separately performed in order to melt the resin component and ensure that the impregnated base cloth 4a sufficiently penetrates into the fibers of the base cloth. Will be needed.

Further, in the present embodiment, the step of impregnating the base cloth with the resin composition shown in (a), the step of dehydrating the base cloth after the impregnation step shown in (b), and the above step shown in (c) Each of the drying processes of the base fabric after the dehydrating process is an example of a batch process independent of each other.
The manufacturing method of c is not limited to such a batch process, but a band-like base cloth is sequentially supplied into the diluted mixed solution M, pulled up sequentially, continuously supplied to the rollers, and further continuously dried with hot air. Continuous processing such as feeding to a machine may be performed.

In the present invention, as the base fabric, a natural fiber or a synthetic resin fiber, a woven fabric obtained by weaving a blended yarn thereof, or a nonwoven fabric which is not woven and has a cloth shape is used. Is done. A knitted material other than the nonwoven fabric may be used as the base fabric 4.

In the present invention, as the base 1 comprising an emulsion of an adhesive resin, an emulsion of a polybutene resin or an emulsion of a polyisobutylene resin, or a mixture of the above-mentioned emulsions is applied.

The above-mentioned polybutene resin is a chemically stable low-polymerization viscous resin mainly composed of isobutylene having an average molecular weight of 250 to 3000, and is usually an electric insulating material, an adhesive, a lubricant, a waterproofing agent, It is used for applications such as improvers, modifiers for rubber and resins, and the like. The above-mentioned isobutylene resin is a low-polymer of high-purity isobutylene, and the liquid polyisobutylene resin has one unsaturated 2
It has a heavy bond. The molecular weight of the polyisobutylene resin is considerably larger than the molecular weight of the polybutene resin. The properties and uses of the polyisobutylene resin are substantially the same as those of the polybutene resin.

In the present invention, an appropriate amount of water mixed with an additive such as a surfactant is added to each of the above-mentioned polybutene resin and isobutylene resin, and the mixture is stirred to prepare an emulsion of the polybutene resin and the polyisobutylene resin. It is said. Such a polybutene resin emulsion and a polyisobutylene resin emulsion are mixed, or each is used alone as the base 1 according to the present invention.

The base 1 has an adhesive strength improving and curing agent 2
Is added to form a mixed solution according to the present invention. Rosin resin is a light yellow substance obtained by purifying resin acid (so-called rosin) contained in pine, and is usually solid at normal temperature. This rosin resin is
The softening point is 70 ° C to 150 ° C, and various grades are set according to the softening point. The higher the softening point, the harder the caking force is exerted, and the adhesive agent improving and hardening agent 2 with less migration property is obtained. In the present invention, all rosin resins having a softening point in the above temperature range are applicable, but it is necessary to increase the drying temperature of the dehydrated base cloth 4b in proportion to the softening point.

The rosin resin is heated and melted, water to which additives such as alcohol and surfactant are added is added, and the mixture is stirred to form a rosin resin emulsion. Water 3 to which an additive such as a surfactant is added is mixed into the above-mentioned mixed solution to form a diluted mixed solution M according to the present invention.

In this embodiment, a rosin resin emulsion is used as the adhesive strength improving and curing agent 2, but the adhesive strength improving and curing agent 2 of the present invention is limited to a rosin resin emulsion. Not softening point
As long as the resin has a temperature of 0 ° C. to 150 ° C., it can be used as a raw material for an emulsion irrespective of a natural resin or a synthetic resin. In the case of a natural resin, an alkane-based saturated hydrocarbon having 18 or more carbon atoms is used as a raw material of the emulsion,
Specifically, for example, carnauba wax obtained from carnauba palm is suitable. In the case of a synthetic resin, a synthetic wax having a softening point in the above range, a low molecular weight polyethylene, and the like can be given.

In the present invention, the mixing ratio of the base 1 and the adhesive strength improving and curing agent 2 is from 5 parts by weight to 100 parts by weight of the base 1 and from 5 parts by weight to 100 parts by weight of the adhesive strength improving and curing agent 2. The addition of parts by weight is taken as a guide. Such an estimate is based on the fact that the amount of the resin component usually contained in the base 1 and the adhesive strength improving / curing agent 2 does not fluctuate so much and is a predetermined amount of the resin component. This is because if the improving and curing agent 2 is mixed within the above range of the weight ratio, the resin composition 10 can always be appropriately prepared.

If the mixing ratio of the adhesive improving and curing agent 2 to the base 1 is less than 5 parts by weight, the cleaning dust cloth 4 c
There is little resin component added to the surface, and as a result, the resin components do not aggregate with each other and harden. On the other hand, if the mixing ratio of the adhesive force improving and curing agent 2 exceeds 100 parts by weight, it hardens and hardens on the base cloth 4 and the flexibility of the base cloth 4 becomes poor, so that the cleaning dust removing cloth 4c may be used. I can no longer do it.

Therefore, the mixing ratio of the adhesive agent improving and curing agent 2 to 100 parts by weight of the base 1 is preferably 5 to 100 parts by weight. The reason is that if the mixing ratio is within this range,
The transfer of the resin component of the cleaning dust cloth 4c to the surface to be cleaned does not occur at all, and the resin component does not harden and solidify on the cleaning dust cloth 4c, so that the cleaning dust removal operation can be performed effectively. It is. When an emulsion of rosin is used as the adhesive strength improving and curing agent 2 even within the above range,
10-20 parts by weight are particularly preferred.

Then, the resin composition 10 comprising the base 1 and the adhesive strength improving / curing agent 2 thus prepared is added to water 3
Is mixed to prepare a diluted mixed solution M. At this time, the mixing ratio of the water 3 is 1% of the resin component amount in the resin composition 10.
Double to 10 times. The reason for this setting is that if the water 3 is not more than one time the amount of the resin component, the viscosity of the diluted mixture M is too viscous, and the resin composition 10 is uniformly impregnated into the base cloth 4. If the amount of the water 3 exceeds 10 times the amount of the resin component, the amount of the resin component in the diluted mixture M becomes too thin, and only the water 3 permeates the base cloth 4 and This is because the components are not effectively impregnated in the base cloth 4.

The mixing ratio of the base 1, the adhesive strength improving / curing agent 2, and the water 3 will be exemplified below. The amount of the resin component in the base 1 is 30 parts by weight, and the amount of the resin component in the adhesive agent 2 and the curing agent 2 is 4 parts by weight.
It is assumed that it is 0 parts by weight. If the resin composition 10 is formed by mixing 15 parts by weight of the adhesive strength improving and curing agent 2 with respect to 100 parts by weight of the base 1, the resin composition 10 in 100 parts by weight contains The component is {(100 × 0.3) + (15 × 0.4)} (100 + 15) = 0.31, which means that 31 parts by weight is included. And a resin composition 1 containing 31 parts by weight of a resin component
Since 0 is mixed with water 3 that is 1.2 to 4 times as large as 0, the lower limit of the mixing amount is Δ (100 + 15).
× 0.31 × 1.2｝ = 43, the upper limit is {(100 + 1)
5) × 0.31 × 4｝ = 143. That is, water 3 in the range of 43 to 143 parts by weight is mixed with 115 parts by weight of the resin composition 10 (1 of the resin composition).
37 to 124 parts by weight of water to 00 parts by weight). As for the amount of water 3 to be mixed, an appropriate value is set in consideration of various operating conditions such as immersion conditions, dehydration conditions, and drying conditions of the base cloth 4.

As described above, in the present invention, a guideline for the mixing ratio of the adhesive 1 and the curing agent 2 to the base 1 is shown, and the resin formed by the base 1 and the adhesive and curing agent 2 Regarding the addition ratio of water 3 to the composition 10,
Since it can be set based on the amount of the resin component contained in the resin composition 10, the blending of the base 1, the adhesive strength improving and curing agent 2 and the water 3 is set based on these standards. By doing so, it is possible to always properly prepare the diluted mixed solution M without failure, and thus it is possible to always and appropriately manufacture the wiping dust cloth 4c according to the present invention.

[0039]

As described above in detail, the wiping dust removing cloth of the present invention is a resin formed by mixing a base and an adhesiveness improving and curing agent on a base cloth made of a woven cloth, a nonwoven cloth or a knitted article. A wiping dust cloth impregnated with a composition, wherein, as the base, an emulsion of a polybutene resin or an emulsion of a polyisobutylene resin, or a mixture of the two emulsions is applied, and the adhesiveness improving and curing agent is softened. A thermoplastic resin emulsion having a point of 60 ° C to 150 ° C is applied.

Therefore, since a polybutene resin or a polyisobutylene resin having an adhesive property even in an emulsion state is used as a base, water is used as a solvent without impairing the adhesiveness of the adhesive component in the resin composition. In addition to avoiding the adverse effects on the working environment and air pollution caused by using an organic solvent as in the prior art, the resin composition further has a softening point of 60 ° C. as an adhesive strength improving and curing agent. Since an emulsion of a thermoplastic resin at a temperature of up to 150 ° C. is provided, the tackiness of the resin component is further improved, and dust is removed by wiping the dust-removed surface with a wiping dust cloth impregnated with such a tacky component. Can be satisfactorily removed without being scattered in the air.

Also, since the above-mentioned thermoplastic resin which exhibits curability at room temperature is added to a polybutene resin or polyisobutylene resin which is excellent in tackiness but does not cure, a binder component is formed. Transfer of the caking component on the base fabric to the non-dust-removing surface is effectively suppressed, and as a result, the caking component on the base fabric has both caking property and non-migration property.

By adding 5 to 100 parts by weight of the adhesive improving and curing agent to 100 parts by weight of the base, the base and the adhesive which occur when the amount is 5 parts by weight or less are added. In addition to avoiding the disadvantage that the mixture with the improving and curing agent becomes too soft and migration of the resin component to the surface to be dust-removed is avoided, and when the amount is more than 100 parts by weight, the binder component becomes too hard to clean Difficulty of the wiping operation can be avoided, and the surface to be removed can be satisfactorily wiped without maintaining migration while maintaining appropriate adhesiveness.

According to the method for producing a cleaning dust cloth of the present invention, a resin composition is prepared by mixing the above-mentioned base with the above-mentioned adhesiveness-improving and hardening agent.
A diluted mixed solution diluted with 10 times water is prepared, and the diluted mixed solution is impregnated into a base fabric made of a woven fabric, a nonwoven fabric, or a knitted fabric. The base fabric is forcibly dried.

Therefore, if the amount of water is not more than one time the amount of the resin component, the inconvenience that the viscosity of the diluted mixture is too viscous and the resin composition cannot be uniformly impregnated into the base fabric can be avoided. In addition, when water exceeds 10 times the amount of the resin component, the amount of the resin component in the diluted mixture becomes too thin, and the inconvenience that the resin component is not effectively impregnated into the base fabric is avoided. The composition can be reliably impregnated, which is convenient for performing a reliable impregnation treatment. And, when the impregnation of the resin composition into the base fabric is completed,
By the dehydration and drying of the base cloth, the base cloth reliably retains the caking component, and an excellent wiping and dust-removing cloth can be obtained.

The dehydrated base fabric is dried at 70 ° C. to 180 ° C.
In this case, the thermoplastic resin component in the resin composition is softened and melted by heating in this temperature range, and is fused with the base fabric. In other words, a polybutene resin or a polyisobutylene resin and a curing agent having excellent curability and an adhesive force improving and curing agent are integrated in a molten state, and an adhesive force in which migration is effectively suppressed is produced. As a result, the resin composition is The base cloth is surely impregnated and is convenient.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view illustrating a method for producing a cleaning dust cloth according to the present invention, wherein (A) is a step of impregnating a base cloth with a resin composition, and (B) is a step of impregnating the base cloth after the impregnation step. Dehydration process, (c)
Indicates a drying step of the base fabric after the dewatering step.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Base 2 Adhesive strength improving and curing agent 10 Resin composition 3 Water M diluted mixture 4 Base cloth 4a Impregnated base cloth 4b Dehydrated base cloth 4c Wiping dust cloth 5 Mixing tank 51 Mixing blade 6 Roller 7 Hot air dryer

Claims (3)

(57) [Claims] 1. A wiping dust cloth comprising a woven fabric, a nonwoven fabric, or a knitted fabric impregnated with a resin composition formed by mixing a base with an adhesiveness improving and curing agent, The base is an emulsion of a polybutene resin or an emulsion of a polyisobutylene resin, or a mixture of the two emulsions. The adhesive strength improving and curing agent is an emulsion of a thermoplastic resin having a softening point of 60 ° C to 150 ° C.
5 parts by weight to 100 parts by weight based on 100 parts by weight of the base
Kiyoshi拭除dust cloth, wherein Rukoto the adhesion enhancing and curing agent in an amount portion is added. 2. An emulsion of a thermoplastic resin having a softening point of 60.degree. C. to 150.degree. C. as an adhesive strength improving and curing agent, based on an emulsion of a polybutene resin, an emulsion of a polyisobutylene resin, or a mixture of the two emulsions. Was prepared, and then a diluted mixture was prepared by diluting the resin composition with water having a weight of 1 to 10 times the weight of the resin component. This diluted mixture was prepared from a woven, nonwoven or knitted fabric. A method for producing a wiping dust cloth, comprising: impregnating a base cloth with the diluted mixture; dehydrating the base cloth impregnated with the diluted mixture; and drying the dehydrated base cloth. 3. The drying of the dehydrated base fabric is carried out at 70 ° C. to 1 ° C.
The method according to claim 2 , wherein the cleaning is performed at 80 ° C.