JP2019030566A - Rust prevention cleaning sheet - Google Patents

Abstract

To provide a rust prevention cleaning sheet capable of applying a sufficient rust prevention effect to a wiped object.SOLUTION: A rust prevention cleaning sheet is formed of an oil solution mixed with at least a rust prevention component, and a nonwoven fabric impregnated with the oil solution, and the nonwoven fabric is formed of a material selected from pulp, rayon, nylon, polyester, rayon pulp and ester pulp.SELECTED DRAWING: None

Description

  The present invention relates to a cleaning sheet obtained by impregnating a sheet with an oil agent and wiping off dirt on an object, and more particularly, to a rust prevention / cleaning sheet capable of imparting a rust prevention effect after wiping off dirt.

  2. Description of the Related Art Conventionally, a so-called “chemical cloth” cleaning sheet in which a nonwoven fabric or a paper sheet is impregnated with an oil agent to wipe off dust and dirt has been widely used. In recent years, floor-use and handy mop-type cleaning sheets that are used by being mounted on instruments are also frequently used. Such cleaning sheets have been focused on the convenience that can be used without using water and the glazing effect after wiping.

  On the other hand, various methods for adding a new function to the cleaning sheet have been proposed. For example, Patent Document 1 discloses a disposable cleaning laminated sheet composed of a laminated sheet having a bulkiness value of 7 to 20 in order to provide a function of adsorbing and removing a large amount of dust and capturing and removing the removed dust. Is disclosed.

  Patent Document 2 discloses a non-oil-permeable synthetic resin film having a chemical cloth in which a base cloth such as paper, non-woven fabric, or cloth is impregnated with an oil-based chemical agent including a rust inhibitor and a surfactant. A shaft polishing wiper is disclosed which is laminated and has pockets facing each other facing toward the center on both sides of the laminated surface.

Japanese Patent Application Laid-Open No. 11-299716 Japanese Utility Model Publication No. 7-248

  The shaft polishing wiper described in Patent Document 2 prevents dirt on the hands by laminating a non-oil-permeable film, and wipes even if the object is a thin stick by attaching pockets facing both sides. The structure is easy to polish and polish. However, Patent Document 2 does not describe any relationship between the material and structure of the base fabric and the rust prevention effect, and may not provide a sufficient rust prevention effect to the object.

  An object of this invention is to provide the rust prevention / cleaning sheet which can provide sufficient rust prevention effect with respect to the wiping target object in view of the said problem.

  In order to achieve the above object, the present invention comprises an oil agent containing at least a rust preventive component and a nonwoven fabric impregnated with the oil agent, wherein the nonwoven fabric is pulp, rayon, nylon, polyester, rayon pulp, and ester. It is formed of a material selected from pulp.

In the rust prevention / cleaning sheet having the above-described configuration, the basis weight of the nonwoven fabric is 40 g / m ² or more and 130 g / m ² or less.

In the rust prevention / cleaning sheet of the present invention, the nonwoven fabric is formed of a material selected from rayon, nylon, polyester, rayon pulp, and ester pulp, and the nonwoven fabric has a thickness of 0.3 mm or more. It is 0.75 mm or less and has a density of 0.11 g / cm ³ or more and 0.18 g / cm ³ or less.

  Moreover, the present invention is characterized in that the nonwoven fabric is formed of rayon pulp in the antirust / cleaning sheet having the above-described configuration.

  In the rust prevention / cleaning sheet having the above-described configuration, the rust prevention component is one or more selected from alkyl phosphate esters, alkyl sulfonate esters and salts thereof.

  Further, the present invention is characterized in that, in the rust and cleaning sheet having the above-described configuration, the rust preventive component is at least one selected from a calcium salt of an alkyl phosphate ester and a barium salt of an alkyl sulfonate ester. .

  Moreover, the present invention is characterized in that, in the rust prevention / cleaning sheet having the above-mentioned configuration, the rust prevention component is a calcium salt of an acidic phosphate ester of castor oil.

  Moreover, this invention is characterized by the compounding quantity of the said antirust component with respect to the said oil agent being 5 mass% or more and 30 mass% or less in the antirust / cleaning sheet of the said structure.

  In the rust prevention / cleaning sheet having the above-described configuration, the oil agent is impregnated in an amount of 10% by mass to 50% by mass with respect to the sheet.

  According to the first configuration of the present invention, by impregnating a non-woven fabric formed of a material selected from pulp, rayon, nylon, polyester, rayon pulp, and ester pulp with an oil agent containing at least an antirust component. Thus, a rust-proofing / cleaning sheet having both a rust-proofing effect and a cleaning effect, which can give a sufficient rust-proofing effect to the wiping surface and can easily remove dirt on the object to be wiped.

Further, according to the second aspect of the present invention, the rust-cleaning sheet of the first configuration, by using the basis weight of 40 g / m ² or more 130 g / m ² or less is a nonwoven fabric, anti-corrosion components Can be impregnated with a sufficient amount of the oil agent, and has an appropriate strength and an easy-to-handle rust prevention / cleaning sheet.

Moreover, according to the 3rd structure of this invention, in the antirust / cleaning sheet of said 2nd structure, it is formed with the raw material chosen from rayon, nylon, polyester, rayon pulp, and ester pulp, and thickness is By using a non-woven fabric having a density of 0.3 mm or more and 0.75 mm or less and a density of 0.11 g / cm ³ or more and 0.18 g / cm ³ or less, it becomes a rust prevention / cleaning sheet that is easier to handle.

  Moreover, according to the 4th structure of this invention, in the rust prevention / cleaning sheet | seat of the said 3rd structure, by using the nonwoven fabric formed with the rayon pulp, a sufficient quantity of rust prevention components are apply | coated to the wiping surface. It is possible to obtain a rust-proof / cleaning sheet with excellent usability.

  Moreover, according to the 5th structure of this invention, in the rust prevention / cleaning sheet | seat of the said any one of the said 1st thru | or 4th structure, it is from alkyl phosphate ester, alkyl sulfonate ester, and those salts as a rust prevention component. By blending one or more selected ones, the rust prevention effect can be further enhanced.

  Moreover, according to the sixth configuration of the present invention, in the rust prevention / cleaning sheet of the fifth configuration, 1 selected from the calcium salt of alkyl phosphate ester and the barium salt of alkyl sulfonate ester as the rust preventive component By blending more than one seed, it is presumed that the rust preventive component is oriented on the metal surface and it becomes easy to form a strong rust preventive film, and a rust preventive / cleaning sheet having a higher rust preventive effect is obtained.

  Further, according to the seventh configuration of the present invention, in the rust preventive / cleaning sheet of the sixth configuration, among other rust preventive components, a calcium salt of an acidic phosphate ester of castor oil is blended to prevent rust. The effect can be further enhanced.

  Moreover, according to the 8th structure of this invention, in the rust prevention / cleaning sheet of the said 1st thru | or 7th structure, the compounding quantity of the rust prevention component with respect to an oil agent is 5 to 30 mass% By doing so, it becomes a rust prevention / cleaning sheet capable of imparting a sufficient rust prevention effect to the wiping surface even under conditions such as outdoors where rust is likely to occur.

  According to the ninth configuration of the present invention, in the rust prevention / cleaning sheet of any one of the first to eighth configurations, the impregnation amount of the oil to the nonwoven fabric is 10% by mass or more and 50% by mass or less. Thus, a rust prevention / cleaning sheet capable of imparting a sufficient rust prevention effect and cleaning effect to the wiping surface is obtained.

  The antirust / cleaning sheet of the present invention is obtained by impregnating a non-woven fabric formed of a specific material with an oil agent containing at least an antirust component. Hereinafter, the rust preventive component, the oil agent, and the nonwoven fabric constituting the rust preventive / cleaning sheet will be described in detail.

(Rust prevention component)
When the metal product is wiped off by the rust preventive / cleaning sheet, the rust preventive component remains on the wiping surface, thereby imparting a rust preventing effect to the wiping surface. As an antirust component mix | blended with the antirust / cleaning sheet of this invention, alkyl phosphate ester, alkylsulfonic acid ester, or those salts are mentioned. In particular, when an alkyl phosphate ester or an alkyl sulfonate ester is blended in an oil agent as an inorganic salt or an organic salt, and impregnated into a sheet and the object is wiped off, the inorganic salt or the organic salt is oriented on the wiping surface (metal surface). It is presumed that it becomes easy to form a strong rust prevention layer, and the durability of the rust prevention effect is improved.

  Examples of the inorganic salt include metal salts such as calcium salt and barium salt. Examples of the organic salt include amine salts such as alkylamine salts and alkanolamine salts. Among the above-mentioned salts, calcium salts of alkyl phosphate esters and barium salts of alkyl sulfonate esters can be preferably used, and calcium phosphates of castor acid acidic phosphate esters can be particularly preferably used. These rust preventive components may be blended singly or in a mixture at a predetermined blending ratio.

  When there is too little compounding quantity of the rust prevention component in the rust prevention and cleaning sheet of this invention, sufficient rust prevention effect cannot be provided to the wiping surface. On the other hand, if the blending amount of the rust preventive component is too large, the improvement of the rust preventive effect is not observed, and the production cost of the rust preventive / cleaning sheet may be increased. Therefore, in order to maintain a sufficient rust-preventing effect while considering the cost, it is preferable that the blending amount of the rust-preventing component with respect to the oil agent is in the range of 5 mass% to 30 mass%. Furthermore, it is more preferable if it is in the range of 10 mass% or more and 20 mass% or less.

(Oil)
The oil agent exerts an effect of adhering dust and dirt on the wiping surface wiped off by the rust prevention / cleaning sheet to the sheet and a glazing effect of the wiping surface, and also functions as a solvent for dissolving the rust preventive component. Examples of the oil blended in the rust prevention / cleaning sheet of the present invention include mineral oil, silicone oil, vegetable oil, animal oil and the like.

  Examples of the mineral oil include paraffinic hydrocarbons such as normal paraffin, isoparaffin and liquid paraffin, naphthenic hydrocarbons such as cyclohexane, and aromatic hydrocarbons such as benzene and toluene. Examples of the silicone oil include silicone and modified silicone. Examples of vegetable oils include linseed oil, tung oil, sesame oil, rapeseed oil, cottonseed oil, soybean oil, camellia oil, olive oil, castor oil, jojoba oil, and the like. Examples of animal oils include lanolin and horse oil. These oil agents may be blended singly or may be mixed and blended at a predetermined blending ratio. Further, a wax component such as carbana wax or beeswax may be blended in order to enhance the glazing effect on the wiping surface.

  Furthermore, in the oil agent, as other components, a surfactant, an antibacterial agent, an algae deterrent, a chelating agent, a fragrance, a deodorizing component, etc. are blended as long as the effects of the present invention are not impaired. Thus, an antibacterial effect, an algaeproof effect, a cleaning effect, aromaticity, deodorizing property and the like may be imparted.

(Nonwoven fabric)
The nonwoven fabric used for the rust prevention / cleaning sheet of the present invention is formed of a material selected from pulp, rayon, nylon, polyester, rayon pulp, and ester pulp. The present inventors have found that the rust prevention effect varies greatly depending on the material of the nonwoven fabric. The reason for this is that when the material of the nonwoven fabric is changed, the adhesiveness with the wiping surface, the impregnation amount (holding power) of the oil containing the rust-preventing component, etc. change. This is probably because the uniformity changes. In particular, a nonwoven fabric made of rayon, nylon, polyester, rayon pulp, or ester pulp is preferred.

  As the pulp, one or more selected from kraft pulp, manila hemp pulp, straw fiber, cotton pulp, recycled paper pulp and the like can be used.

  Rayon is a hydrophilic fiber, and a known fiber can be used. For example, regenerated fiber such as viscose rayon and copper ammonia rayon can be used. The thickness of the rayon is preferably 1 to 5 dtex. The fiber length of rayon is preferably 30 to 60 mm, and a single fiber is preferable. These rayon may be used individually by 1 type, and may use 2 or more types together.

  As nylon, nylon 6 and nylon 66 can be used. As the polyester, polyethylene terephthalate, polybutylene terephthalate, or the like can be used, but polyethylene terephthalate is preferable.

  Rayon pulp is a composite fiber in which the above-described rayon fiber, which is a non-woven fabric material, and pulp are mixed at a predetermined mixing ratio. The ester pulp is a composite fiber in which the above-described polyester fiber and pulp are mixed at a predetermined mixing ratio.

  Here, a nonwoven fabric having a bulky structure with a lot of fluff on the surface and internal voids can adsorb a lot of dust, but its adhesion to the wiping surface is reduced, so in order to remove dirt, the pressing force against the wiping surface Need to be larger. Therefore, an extra force is required at the time of wiping, and the feeling of use (wiping property) is deteriorated. Further, since the oil agent penetrates into the inside of the nonwoven fabric, the amount of the oil agent oozing out from the surface of the nonwoven fabric is reduced, and it becomes difficult to form a film of the oil agent on the wiping surface. Furthermore, since the strength of the nonwoven fabric also decreases, there is a risk of tearing during use. And since the process for raising the surface is required at the time of manufacture of a nonwoven fabric, manufacturing cost also rises.

  On the other hand, it can be said that paper, synthetic paper, and the like having almost no internal space are not bulky. Since paper has hardness and lacks flexibility, the feeling of use (wiping ability) decreases when used for a rust prevention / cleaning sheet. Furthermore, there is a feeling of creaking during use, and it becomes difficult to make the nonwoven fabric adhere along the wiping surface of a complicated shape.

  Therefore, the antirust / cleaning sheet of the present invention does not have a bulky structure with many voids, and the surface fluff is not particularly increased to the extent that it exists in ordinary nonwoven fabrics, but the surface is cracked. Use non-woven fabric. Thereby, the oil agent can be held near the surface of the nonwoven fabric, and the oil agent containing the rust preventive component can be sufficiently and uniformly applied to the wiping surface without being impregnated with a large amount of the oil agent. In addition, the nonwoven fabric has a certain degree of flexibility and also has high adhesion to the wiping surface, so it does not require a strong force to remove dirt, and is low-cost and has excellent wiping properties. It becomes a cleaning sheet.

The structure of such a nonwoven fabric can be specified by thickness, basis weight, and density. For example, in the case of a nonwoven fabric made of rayon, nylon, polyester, rayon pulp or ester pulp, the thickness is 0.3 mm or more and 0.75 mm or less, the basis weight is 40 g / m ² or more and 130 g / m ² or less, and the density is 0. it is preferable to use a .11g / cm ³ or more 0.18 g / cm ³ or less is nonwoven. By using the nonwoven fabric of the said structure, the film of an oil agent can be uniformly formed in the wiping surface, suppressing the amount of impregnation of an oil agent. In addition, the non-woven fabric is not torn at the time of wiping or is not rugged like paper, and the usability is excellent.

  The manufacturing method of a nonwoven fabric is divided roughly into three methods, the wet method, the dry method, and the spinning direct connection method. Examples of the wet method include a wet papermaking method in which fibers or fibers and pulp are formed into a sheet by a papermaking method. Examples of the dry method include a carding method in which the fiber lump is cut to form a thin sheet-like nonwoven fabric, and an airlaid method in which pulp or fibers are dispersed in the air and accumulated on a screen to form a bulky nonwoven fabric. . The direct-spinning method includes a spunbond method in which a molten thermoplastic polymer is extruded from a spinneret and stretched and accumulated on a conveyor belt, and a thermoplastic polymer extruded from a die having many small holes is made into ultrafine fibers by high-speed hot air. Examples thereof include a melt blow method that accumulates on a screen.

  Other methods for bonding (bonding) fibers include a chemical bond method for bonding fibers using an adhesive, a thermal bond method for bonding using self-adhesive or bonded fibers, and a needle punch for confounding fibers using a special needle. A single fiber material or a composite fiber material is bonded and entangled using various methods such as the water entanglement method (spun lace method) in which fibers are entangled by high-pressure water flow, and the stitch bond method in which yarns are knitted with yarn so that the fibers cannot be broken A nonwoven fabric can be manufactured by combining. However, depending on the manufacturing method, there is a method in which the bulkiness value is increased. For example, in the hydroentanglement method, it is necessary to devise such as increasing the water pressure. In addition, in this invention, if a desired effect is acquired when it is set as a rust prevention / cleaning sheet, it will not specifically limit about the manufacturing method of a nonwoven fabric.

  When the amount of the oil agent impregnated in the nonwoven fabric is too small, the cleaning effect and the glazing effect on the wiping surface are lowered, and the rust preventive effect due to the rust preventive component cannot be sufficiently provided. On the other hand, if the amount of the oil agent is too large, the feeling of use becomes worse, and a large amount of the oil agent remains on the wiping surface, which may cause stickiness.

  The amount of the oil agent impregnated into the nonwoven fabric is preferably in the range of 5% by mass to 50% by mass, and more preferably in the range of 20% by mass to 40% by mass. In particular, the impregnation amount is preferably about 40% by mass in order to enhance the rust prevention effect for metal products left outdoors such as bicycles.

  The rust prevention / cleaning sheet of the present invention thus obtained can apply a sufficient amount of oil containing a rust preventive component to the wiping surface, and can effectively prevent rusting on the wiping surface. Moreover, the adhesiveness with respect to the wiping surface is high, and dirt can be removed with a light force. Furthermore, since the amount of the oil agent impregnated into the nonwoven fabric can be reduced, it is possible to provide a rust prevention / cleaning sheet that is low in cost and excellent in usability as compared with the prior art, and is extremely practical.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims, and the embodiments can be obtained by appropriately combining technical means disclosed in different embodiments. The form is also included in the technical scope of the present invention. Hereinafter, the effects of the present invention will be described more specifically with reference to examples. However, the present invention is not limited to these examples.

[Preparation of anti-rust / cleaning sheet]
As an antirust component, an acid agent was prepared by dissolving 20% by mass of castor oil acidic phosphate ester calcium salt (Chilleslite P-21C, manufactured by Kirest Co., Ltd.) in 80% by mass of isoparaffin (IP Solvent, manufactured by Idemitsu Kosan Co., Ltd.). .

  Rayon pulp non-woven fabric (NR91040, NR91060, NR91130, NM91080, Sanwa Paper Co., Ltd.), rayon pulp non-woven fabric (wet paper making non-woven fabric: Invention 2), rayon non-woven fabric (COLDON R0055, Asahi Kasei Co., Ltd.), nylon non-woven fabric ( COLDON L0060, manufactured by Asahi Kasei Co., Ltd., ester pulp non-woven fabric (COLDON EP055, manufactured by Asahi Kasei Co., Ltd.), polyester non-woven fabric (COLDON E0080, manufactured by Asahi Kasei Co., Ltd.), polyester non-woven fabric (Leifa LR0502W, manufactured by Tsuji Tomi Co.), pulp non-woven fabric (Kinocloth) , Manufactured by Oji Kinocross Co., Ltd.), each having a rectangular shape of 12 × 15 cm, and impregnated with an amount of oil corresponding to 20% of the mass of the sheet to produce a rust prevention / cleaning sheet (Invention 1 to 11). .

  Similarly, special acrylic non-woven fabric (COLDON C0030, manufactured by Asahi Kasei Co., Ltd.), ultra-fine ester non-woven fabric (COLDON Q0140, manufactured by Asahi Kasei Co., Ltd.), acrylic polyester non-woven fabric (acrylic 70%, SHALERIA C3050, manufactured by Asahi Kasei Co., Ltd.), acrylic rayon non-woven fabric (Acrylic 65%, SHALERIA CR050, manufactured by Asahi Kasei Co., Ltd.), polypropylene nonwoven fabric (TAPYRUS P120UA-OCX, P050MW-OCX, P050FW-OCX, P030UA-OCX, P100SW-OCX, manufactured by Tongan Tapils Co., Ltd.) each 12 × 15 cm Cut into a rectangular shape and impregnated with an amount of oil corresponding to 20% of the mass of the sheet to produce a rust prevention / cleaning sheet (Comparative Examples 1 to 9).

  Hereinafter, the details of each tested nonwoven fabric will be described. The COLDON series manufactured by Asahi Kasei Co., Ltd. is a wet spunlace nonwoven fabric produced by papermaking and water flow communication. The SHALERIA series manufactured by Asahi Kasei Co., Ltd. is a wet spunlace nonwoven fabric with a special structure (three layers) made mainly of acrylic extra fine fibers. The non-woven fabric made of rayon pulp manufactured by Sanwa Paper Co., Ltd. is a three-layer bonded type wet spunlace nonwoven fabric in which both surface layers are rayon and the middle layer is pulp. As another non-woven fabric made of rayon pulp (Invention 2), an adhesive (binder) 8% by mass is added to 40% by mass of rayon fibers and 50% by mass of pulp, and is formed into a sheet by a wet papermaking method.

  The TAPYRUS series manufactured by Tonen Tapils is a self-adhesive (thermal bond) non-woven fabric that uses no ultrafine fibers. Reefa series manufactured by Tsuji Tomi is a long fiber nonwoven fabric. Kinocloth manufactured by Oji Kinocloth Co., Ltd. is a dry pulp nonwoven fabric obtained by mixing pulp fibers with an adhesive (binder).

[Rust prevention test]
The surface of the test iron plate having a length of 3 cm × width of 4.5 cm and a thickness of 0.5 mm was wiped off 5 times with the antirust / cleaning sheet prepared in Example 1 (Invention 1-11, Comparative Examples 1-9). . Regarding the usability at the time of wiping, ◎ when the wiping process is easy and there is no problem at all, ◯ when the feeling of use is worrisome but there is no problem in practical use, △ when it is somewhat difficult to treat, △ The case where tearing and a feeling of stickiness were remarkable and difficult to process was evaluated as x.

  The iron plate after wiping was left in the petri dish, Kimwipe (trademark) cut to 2 cm x 3 cm was placed on the iron plate, 0.2 ml of 0.1% saline was added to the Kimwipe, and the petri dish was covered. . The petri dish was placed in a desiccator containing a beaker containing water, and the state of rust generation after keeping the temperature at 30 ° C. for 1 hour was visually observed. Moreover, it tested similarly using the iron plate which does not wipe off with a sheet | seat as a control test (negative control).

  The evaluation criteria were ◎ when almost no rust was generated, ◯ when a little rust was generated, △ when rust was generated as it was, and × when rust was generated at the same level as the negative control. The antirust effect is shown in Tables 1 and 2 together with the material and configuration of the nonwoven fabric and the usability during wiping.

As shown in Table 1, the iron plate is wiped off with a rust prevention / cleaning sheet using a nonwoven fabric made of pulp, rayon, nylon, polyester, rayon pulp, and ester pulp having a basis weight of 40 g / m ² or more and 130 g / m ² or less. In the present inventions 1 to 11, almost no rust was generated or a little rust was generated in the rust prevention test. In particular, a non-woven fabric made of rayon, nylon, polyester, rayon pulp, ester pulp, having a thickness of 0.3 mm to 0.75 mm and a density of 0.11 g / cm ^{3 to} 0.18 g / cm ³ is used. In the present inventions 1 to 8, the rust was hardly generated, the nonwoven fabric was not torn during wiping, and the paper was not stiff like paper, and the usability was excellent.

  On the other hand, as shown in Table 2, in Comparative Examples 1 to 9 where the iron plate was wiped off with a rust prevention / cleaning sheet using a special acrylic, ultrafine ester, acrylic polyester, acrylic rayon, and polypropylene nonwoven fabric, the ultrafine ester Rust was generated as it was except for Comparative Example 2 using a non-woven fabric, or rust was generated at the same level as the negative control. Moreover, although it was a grade which a little rust generate | occur | produced in the comparative example 2, there existed a problem in the point of the usability at the time of wiping off.

[Evaluation test of anti-rust components]
Castor oil acidic phosphate ester (Chilleslite P-21A, manufactured by Kirest Corporation), castor oil acidic phosphate ester calcium salt (Chilleslite P-21C, manufactured by Kirest Corporation), organic phosphate ester (Chilleslite P) -18C, manufactured by Cylest), amine salt of oxidized paraffin (Chilleslite BS, manufactured by Cylest), organic acid amine salt (Cyleslite Z-7, manufactured by Cylest), petroleum sulfonic acid-based dehumidifying and rust preventive agent (Cebo EP- 10, 20% by mass of Toyo Yakuhin Kagaku Kogyo Co., Ltd. was dissolved in 80% by mass of isoparaffin (IP solvent, manufactured by Idemitsu Kosan Co., Ltd.) to prepare oils (Nos. 1 to 6).

Equivalent to 20% of the mass of a sheet, cut into a rectangular shape of 12 × 15 cm, having a thickness of 0.4 mm, a basis weight of 60 g / m ² , and a density of 0.15 g / cm ³ of a rayon pulp nonwoven fabric (wet papermaking nonwoven fabric) A rust preventive / cleaning sheet was prepared by impregnating the amount of the oil agent to be used, and a rust preventive test was performed according to the same procedure and evaluation criteria as in Example 2. The results are shown in Table 3.

  From the results in Table 3, No. 1 containing an acidic phosphate ester of castor oil and its calcium salt, an organic phosphate ester, and a petroleum sulfonic acid-based dehumidifying and rust preventive agent as a rust preventive component. It was confirmed that an excellent rust preventive effect was obtained when the oil agents 1 to 3 and 6 were used.

  INDUSTRIAL APPLICATION This invention is used suitably as a rust prevention / cleaning sheet which can provide sufficient rust prevention effect with respect to the wiping target object.

Claims (9)

An oil containing at least an antirust component;
A nonwoven fabric impregnated with the oil agent;
Consists of
The anti-rust / cleaning sheet, wherein the nonwoven fabric is formed of a material selected from pulp, rayon, nylon, polyester, rayon pulp, and ester pulp. The rust preventive / cleaning sheet according to claim 1, wherein the nonwoven fabric has a basis weight of 40 g / m ² or more and 130 g / m ² or less. The nonwoven fabric is formed of a material selected from rayon, nylon, polyester, rayon pulp, and ester pulp,
The rust prevention / reduction according to claim 2, wherein the nonwoven fabric has a thickness of 0.3 mm or more and 0.75 mm or less and a density of 0.11 g / cm ³ or more and 0.18 g / cm ³ or less. Cleaning sheet.   The rust preventive / cleaning sheet according to claim 3, wherein the nonwoven fabric is formed of rayon pulp.   The rust preventive / cleaning according to any one of claims 1 to 4, wherein the rust preventive component is at least one selected from alkyl phosphate esters, alkyl sulfonate esters and salts thereof. Sheet.   6. The rust preventive / cleaning sheet according to claim 5, wherein the rust preventive component is at least one selected from a calcium salt of an alkyl phosphate ester and a barium salt of an alkyl sulfonate ester.   The rust preventive / cleaning sheet according to claim 6, wherein the rust preventive component is a calcium salt of an acidic phosphate ester of castor oil.   The rust preventive / cleaning sheet according to any one of claims 1 to 7, wherein a blending amount of the rust preventive component with respect to the oil agent is 5% by mass or more and 30% by mass or less.   The rust preventive / cleaning sheet according to any one of claims 1 to 8, wherein an impregnation amount of the oil to the nonwoven fabric is 10% by mass or more and 50% by mass or less.