DE1503765A1 - Impregnation of abrasive pads - Google Patents

Description

Impregnation of abrasive pads.

The present invention relates to a method of manufacture of scouring pads for cleaning and scrubbing kitchen utensils or for similar household uses as well a new soap-based waterproofing agent for scrub pads and the like.

With the invention, on the one hand, a method for producing scrubbing balls is proposed in which a tape is made suitable shower ball fibers with a first and a second Side sprayed with detergent on at least the first side »cuts the tape into individual sections, Rolls up the sections with the first side outward into cylinders and the cylinders into scrubbing pads of the desired Mold presses.

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Secondly, an impregnating agent for scouring pads and the like vorgesehlagen with the invention containing 25 to 50 wt. I »Water, 1 to 3 wt. $ Of sodium nitrite, 3 to 10 wt» # alkali metal carbonate, 0 to 6 wt. # Polyglycol, 10 to 45 wt. i »Kaliumseifβ a fatty acid mixture having a high lauric acid content (anhydrous soap plus Unverseifbarea), 0.5 to 22.5 weight. i> alkali soap of a Fettaäuremischung high lauric acid content (anhydrous soap plus TJnvereeifbaresh 5 to 45 weight"# alkali soap of a Talgfettsäuremischung (anhydrous soap plus unsaponifiables) and contains 0 to 6 wt. $> foam improver.

Specifically, an impregnating agent for scouring pads, it is proposed that 30 to 45 wt. I> water, 1.5 to 2.5 wt »i> ITatriumnitrit, 5 to 8 wt. $> Alkali metal carbonate, polyglycol $ 2 to 4 wt., 20 to 30 wt. # potassium soap of a fatty acid mixture high Xiaurinsäuregehalt 1.5 to 12.5 wt. i * alkali soap of a fatty acid mixture having a high lauric acid content, 15 to 25 wt. ^ alkali soap of a Talgfettsäuremischung, 2 to 4 wt. i "Look Ever Better and 0 to 1 wt. $> Contains paint and perfume,

Ss was determined using tests to determine the effectiveness of Impregnating agents based on synthetic washing raw materials or soap in connection with steel wool balls for cleaning purposes found that the impregnating agent according to the invention can be applied to soap

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Based on the above composition, it is based on the impregnating agents previously used in commercial steel wool balls Seifenbaais is superior and meets the practical requirements better. The invention will prevail in the following explained on the basis of steel wool balls, but instead other metal fibers can also be used with the same result Synthetic fibers are used.

The impregnating agents according to the invention contain “based on the total weight: 25 to 50% by weight > water; At this water content, the impregnating agents can be applied to the scouring pads by any of the conventional methods, such as dipping, spraying and the like, and are solid after cooling

Sodium nitrite, when used in an amount based on the total weight of $ 1 to $ 3, along with the other components, provides improved rust resistance of steel wool scouring pads. Sodium nitrite has been previously used for this purpose {but achieves a better weeentlich host resistance with the impregnating agents based on soap with the inventive composition than with the previously known.

The alkali carbonate, which in the impregnation according to the invention

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averaging in amounts of 3 to 10 weight pounds can be used sodium or potassium carbonate. This component ensures the flowability of the, which is necessary for a good distribution of the soap over the entire cross-section of the scouring pad Impregnating agent achieved. In addition, the alkali carbonate and especially the sodium carbonate promotes due to its high Water retention: the solidification of the soap after it has been applied to the abrasive pads.

Polyglycols are effective when using less than 6 wt. #, based on the total mass, as a humectant and prevent the soap from drying out during storage and thereby large losses occur due to dust formation. For the impregnating agents according to the invention are suitable polyglycols Polyethylene glycol, sorbitol, mannitol, glycerin and the like, of which glycerin is preferred.

The potassium soap used according to the invention of a fatty acid mixture with a high lauric acid content, which according to the invention is used in amounts of 10 to 45 $ based on the total weight, can be produced by saponification from an oil with a high lauric acid content such as commercial coconut oil, palm kernel oil or babassu oil. It is preferable to use coconut oil soaps with a low moisture content. When using commercially available potassium coconut oil soaps, the water content of the impregnating agent may have to be reduced after manufacture.

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be reduced to achieve a water content of 25 to 50 wt · #.

The alkali soap of a fatty acid mixture used according to the invention High lauric acid can be made from sodium or potassium soap exist and is used in amounts of 0.5 to 22 wt. #, based on the impregnating agent. You can come from an oil iBxt high lauric acid content such as commercial coconut oil, FaImkernßl or Babaesub "! or from the fatty acids of such oils' be made by saponifying baiVo neutralization.

The alkali soap of a tallow fatty acid mixture used according to the invention can consist of sodium or potassium soap and is used in amounts of 5 to 45% by weight on the impregnating agent Any similar raw materials containing mainly palmitic, stearic and oleic acid are obtained. It is important ä '& u the unsaturated oleic acid which is atrxuiatalgseifen a normal part of many ¥, in an amount of werager than |. 8 percent fo _f based on the Gcisamtimprägniermittel, is present "In the presence of more oil 18 percent _o $ oleic acid In the IE impregnation agent, a marked deterioration in the soak property was found on _β

let sodium soaps of fatty acid mixtures with high Iiauric acid

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content and the tallow or equivalent fatty acids are expedient simultaneously produced by conventional soap-making processes using the customary chair-boiling process

The Schaumverbeeserer, according to the invention in the impregnating related amounts of less than 6 wt =% is used, of a saturated fatty alcohol having 6 to 18th Carbon atoms exist »If larger amounts of foam improver are used, the impregnation soap becomes more difficult to handle and its appearance is impaired less suitable as they can develop an unpleasant odor. When using fatty alcohols with a longer chain, e.g. with 12 to 18 carbon atoms, these are preferably used in mixtures to achieve optimal foam effects. "Typical fatty alcohols for use in the impregnating agents according to the invention are, for example, octanol, decanol _9, tetradecanol, hexadecanol, octadeeanol, dodecanol and the like". Of these fatty alcohols, dodecanol is used for the purposes The use of saturated fatty alcohols with 12 to 18 carbon atoms preferred according to the present invention, particularly good results were achieved with mixtures of the alcohols with 12, 14 and 16 carbon atoms

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to appropriate scouring pads without a souchwrerbeaserer can be used longer.

In addition, it was found that to further reduce the formation of rust when using steel wool in the scrub bales chloride. * -, and sulfate ion concentration in the novel impregnating agents, based on the total mass below 1 wt, i 'and preferably below 0.2 percent are 5 must . These ions are generally introduced through salts which are formed in standard soap making processes and which are contained in many commercially available soaps.

The impregnating agents according to the invention can, however, be applied to the scouring pads by any known method they can be applied particularly well using a spray method. The known soap-based impregnating agents were not suitable for spraying on because of their physical properties suitable for scrubbing balls. In attempts to apply these well-known impregnation soaps by spraying, ( generally scrub pads obtained with a very unappealing appearance in which the soap is unevenly distributed and, in addition, high soap losses occurred due to the spraying during processing.

A particularly satisfactory product is made with the invention

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large impregnation agent or other suitable sprayable Soaps or synthetic detergents are obtained by a process in which a flat ribbon of suitable Scouring pad wool or fiber of width and thickness suitable for making scouring pads of the desired shape Das sprayed detergent on at least one side Detergent is supplied from a suitable supply source via a pump through a spray nozzle. Then be on the tape

The detergent used here can be the same as that used for spraying or another compatible detergent. The delivery sequence of the semi-solid core mass and the running speed of the belt are coordinated with one another in such a way that individual bodies are formed from the core mass on the belt. then cut by cutting devices at regular intervals' so that each strip portion includes a single, defined detergent body. According to another embodiment, the tape can also be cut or torn into sections of the desired length before the core compound is applied. The individual sections are then rolled around the body of the detergent to form cylinders and these are pressed into the finished scouring pads «, cutting is under" cutting "

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or traveling the belts of steel wool or other for Scrubbing balls of suitable material understood to be sections of the required length.

In practicing a preferred embodiment of the invention, steel wool is used as the scrubbing pad fiber. It has been found that the type of steel wool can be varied within a wide range depending on the desired soil effect and the structure of the finished scouring pads. Commercial steel wool of the quality classes from about * Ί ^Η to "00" are _{preferably used o} Long-fiber steel wool is preferably used, which gives the finished scouring pads the desired elasticity and resilience and at the same time reduces the number of short ends that make the consumer's hands rough can.

Any spray system suitable for spraying soap can be used to carry out the spraying process in the method according to the invention be used. The steel wool tapes should be provided with an even Saifencovering as far as possible, which has no visible drops or pearls.

When using steel wool tape, a soap mass is preferably used as the detergent for impregnation Most soaps are made using spray nozzles with spray orifices

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Satisfactory results achieved from 0.127 to 0.635 mn * The soap to be sprayed is kept at a temperature above which the soap is liquid and can be sprayed, and below which the sprayed soap too quickly dries to adhere satisfactorily to the steel wool tape. At very high temperatures, the moisture of the soap becomes evaporates very quickly, causing the soap to partially dry and no longer adhere sufficiently .. in general, temperatures of the soap masses of 43 ° to 99 ° 0 are satisfactory Results obtained · Soap masses with temperatures between 60 ° and 71 ° C are preferably used. · The soap mass is used in a ratio of 3 to 7 grams of soap solids per 6 g steel wool sprayed onto the steel wool tape “The soap can be sprayed on one or both sides of the flat steel wool tape, however, according to the present invention preferably only one side of the steel wool tape sprayed with soap.

The detergent used according to the invention as the core composition can consist of any detergent that is compatible with the sprayed detergent and as semi-solid, plastic, paste-like mass can be extruded and after extrusion retains its position and shape as a delimited body. When using soap, it is preferred to apply 0 to 3 grams of soap solids per 6 grams of steel wool tape.

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pie steel wool balls are made from steel wool tapes of about 45.7 cm in length and weighing 6 g. The bands can be done before or after application of the soap core by conventional devices for tearing or cutting steel wool getting produced. The soap core is applied to the steel wool and preferably arranged in such a way that, after the scouring pad has been completed, it is approximately in the middle of the Bale is located. The cut or torn steel wool tape on which the soap core is preferably located on the Soap-free side of the tape is then placed on a conventional device for rolling up steel wool balls Rolled into cylindrical structures and then pressed into the finished scouring bale in conventional steel wool ball presses

The inventive method was described including the application of a core to the steel wool tape, however, certain types of abrasive pads can be made without this core, with satisfactory ones as well Results are obtained. . .

The soap-based impregnating agent can be made according to the following Examples are produced.

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Example ^ 1

A solution of 3 _f 4o2 kg of sodium carbonate and 1.134 kg of sodium nitrite in 12.202 kg of water was prepared and this solution »heated in a crutcher to 60 ° C Then, with stirring, 14.560 kg molten kettle soap with 70 i ° dry substance consisting of 80 # Sodium tallow soap and 20 1 ° consisted of sodium coconut soap, added to the solution. The mixture thus obtained was simultaneously admixed with 4.763 kg of 50% potassium hydroxide solution and 9.299 kg of coconut oil while stirring, the temperature of the mixture being kept at 77.degree. Then 1.361 kg of dodecanol were added to the mixture and stirring was continued for 90 minutes at a temperature of 77 ° C. for complete saponification. The soap mix was then ready to be applied to scouring pads. For this purpose, steel strips were dipped into the liquid soap mixture at 65.5 - 5 ° C and passed between two rollers to squeeze off the excess soap solution. The steel wool impregnated with the soap was then cut to the desired size and rolled and pressed into balls. The finished scouring pads were dry and formed a creamy, persistent foam with use.

Example 2

A solution of 3.402 kg of sodium carbonate and 1.134 kg was obtained Sodium nitrite is made in 12.202 kg of water and this solution

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heated in a crater to 60 ° C. Then stirring '11.340 kg molten boiler soap with 70 # dry substance fo consisted of sodium coconut soap to 80 from Natriumtalgseife and $ 20 added to the solution. 5.806 kg of 50% potassium hydroxide solution and 11.385 kg of coconut oil were added to the mixture obtained in this way, while stirring, the temperature of the mixture being kept at 77 ° C., then 1.361 kg of dodecanol were added to the mixture and added to it

complete saponification for a further 90 minutes at 77.degree ο The soap mixture obtained was then ready for, Apply to scrubbing pads. For this purpose, Stahlwoliestrelfen were used dipped into the liquid soap mixture up to 65t5 ° * 5 ° C and to squeeze off the excess soap solution between two orphans. The steel wool impregnated with soap was cut and rolled to the desired size and then pressed. The finished scouring pads provided a creamy, permanent foam «,

Example 3

A solution of 3.266 kg of sodium carbonate, 1.088 kg of sodium nitrite and 1 _? 497 kg of sodium hydroxide in 14.769 kg of water hergestelltο 5.991 kg commercially available stearic acid, containing 50 f> palmitic acid and 35 f> of stearic acid, 0.907 kg of oleic acid and 1.679 kg of coconut fatty acid were melted and zu.der with stirring at a temperature of 65.5 ° C solution

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given. The mixture was stirred until it had a uniform seismic appearance and the temperature began to drop, indicating the completion of the reaction. Then 9,797 grams of coconut oil were added to the reaction mixture with stirring. The temperature was set at 77 ° to 88 ° C. After the coconut oil had been mixed into the reaction mixture, 4 _{t of} 899 kg of 50% potassium hydroxide solution were added and stirring was continued for 1 hour at a temperature of 77 ° to 88 ° C. After stirring for one hour, 1.361 kg of dodecanol, Farftin and color were added to the mixture and stirred in evenly. This liquid soap mixture was sprayed onto steel wool at a temperature of 65.5 - 5 ° C. The steel wool thus impregnated was cut and rolled to the desired size and then pressed into scouring balls.

Example 4

A solution of 3.266 kg of sodium carbonate, 1.088 kg of sodium nitrite and 1.497 kg of sodium hydroxide in 14.769 kg of water was prepared. 5.991 kg of commercial stearic acid, which contained $ 50 palmitic acid and $ 35 stearic acid, 0.907 kg of oleic acid and 1.679 kg of coconut fatty acid were melted and added to the solution at 65.5 ° C. with stirring. The mixture was stirred until it became evenly soapy in appearance and the temperature began to drop, which the

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Indicated completion of the reaction. The reaction mixture was then admixed with 9.797 kg of coconut oil while stirring. The temperature was then adjusted to 77 ° to 68 ° C., after the coconut oil was mixed into the reaction mixture, 4.899 kg of 50% potassium hydroxide solution was added to the mixture, and stirring was continued at a temperature of 77 ° to 88 ° C. for one hour. After the one hour stirring period were 1.360 kg.Dodecanol, perfume and color added to the mixture and to the uniform distribution further stirred ₀ liquid soap mixture was added with a temperature of 65.5 - Wool ™ 5 ° C on steel sprayed, wherein the Soap was applied in a ratio of 4 g of soap per band 46 cm in length and 6 g in weight. Bann was extruded 1 g of soap in a semi-solid, plastic, paste-like form at intervals of 46 cm onto the tape passed under an extruder nozzle. The tape was then cut at 46 cm intervals so that 46 cm long sections each with a semi-solid, plastic, paste-like soap core at one end were obtained. The soap-impregnated steel wool sections were then cut to the desired size and rolled and pressed into scouring balls.

Example 5.

A solution of 3.175 kg sodium carbonate, 1.134 kg Sodium nitrite and 8.346 kg 50 # potassium hydroxide solution in

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14,197 kg of water produced. 10.160 kg of fatty acid, which by Hydrogenation of distillation residue from Kbkoeöläeetillation were obtained (with a content of 35 pounds of palmitic acid and 59 * stearic acid) and 8.346 kg of commercial coconut were melted and bored at 71 ° C to the Solution given. The mixture was stirred until it had a steady soap-like appearance and the temperature began to drop "which indicated the completion of the reaction. Then perfume" and color were added to the mixture and continued to stir until it was evenly distributed. The liquid soap mixture was at a temperature of 65.5 * 5 ° C sprayed onto steel wool, the soap being applied in a ratio of 4 g of soap per band of 46 cm length and 6 g weight Extruded tape that is looped from behind under an extruder eyelet. The tape was then cut at intervals of 46 om so that 46 cm long sections each with a semi-solid, plastic, paste-like soap core on one end were obtained. The soap-impregnated steel wool sections were then cut to the desired pit and rolled and into balls pressed «The scouring pads produced a creamy, persistent foam in use.

In Examples 3, 4 and 5 the soap was made with a pressure

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τοπ 28 atu through a liquid air-free spraying nozzle (single fluid airless spray nozzle) with an opening of 0.5 mm diameter sprayed. Instead of these nozzles, you can also any other conventional spray device can be used.

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Claims (1)

(Ü3 437 315 - priority 4.3-65 - 4061 AS Colgate-PalmoliYe Company
Ifew York «HY ·, V.St.A · Patent claims fe Λτ method for the production of scrubbing balls, characterized in, that one is a tape made of abrasive pad fibers with a first and a second side on at least the first Side sprayed with detergent, cut the tape into individual sections, the sections with the first side rolls up to the outside to form cylinders and presses the cylinders into scrubbing pads. 2. The method according to claim 1, characterized in that one before cutting the tape into sections, a detergent is extruded onto one side of the tape » 3. The method according to claim 1, characterized in that one a detergent after cutting the tape into sections extruded on one side of the tape » 90 9818/00 9 5 .ORIOtNAL INSPECTED 4. The method according to claim 1 to 3, characterized in that that steel wool is used as the ball of seaweed and soap as a detergent. 5. The method according to claim 1 hie 4, characterized in that that nan a semi-solid, plastic, paste-like soap in Form of individual connected bodies in intervals extruded onto the second side of the tape, the tape at intervals of a continuous soap bar containing sections cuts, the sections with the contiguous soap body approximately in the middle and rolls up the first side of the tape to the outside into cylinders and presses the cylinders into scrubbing balls » 6. The method according to claim 1 to 5, characterized in that man a steel wool tape of 3 to 7 g and preferably 4 to 6 g of soap solids per 6 g of tape weight sprayed. ... 7 · The method according to claim 1 to 6, characterized in that each 0 to 3 g of semi-solid, plastic, paste-like Apply soap to a section of steel wool tape 46 cm long and 6 g in weight. 3. Soap-based impregnating agent for scouring balls, characterized in that it contains 25 to 50 wt. Fi water, 1 to 3 wt. _O ? S -3-909818 / 0095 U «Y / U Sodium nitrite, 3 to 10 wt. Fo alkali metal carbonate, 0 to 6 polyglycol, 10 bia 45 wt. JC potassium soap of a fatty acid mixture high Leurinsäuregehalt, from 0.5 to 22.5 weight.? S sodium soap of a fatty acid mixture high Laur insäur egehalt, 5 to contains 45 wt. 56 sodium soap of a Talgfettsäuremischung and 0 to 6 $ Gewo suds. 9ο Impregnating agent according to claim 8, characterized in that it 30 to 45 turn $> water, 1.5 to 2.5 wt. # Of sodium nitrite, 5 to 8 wt. $ Alkali metal carbonate, 2 to 4 wt. # Polyglycol, 20 to 30 wt. $> potassium soap of a Petteäuremischung high lauric acid content is 1.5 to 12.5 wt. # alkali soap of a fatty acid mixture Rait high lauric acid content, 15 to 25 wt. $ alkali soap of a Talgfettsäuremischung, 2 to 4 wt. f "Söhaumirerbesserer and 0 to 1 Weight contains color and perfume 10. Impregnation agent according to claim 9, characterized in that that as AlkaXi soap it is a fatty acid mixture with a high Lauric acid content and as alkali soap in a tallow fatty acid mixture EaIium or sodium soap contains » ϊ. Egg pruning agent according to Claims 9 to 10, characterized in that that he was used as a soap with fatty acids high lauric acid content, sodium soap and as an alkali soap 909818/009 5 BADORIOINAL a mixture of tallow fatty acids with potassium soap or vice versa holds. 12. Impregnation agent according to claim 8 to 11, characterized in that that it is glycerin as a polyglycol and as a foam improver at least one fatty alcohol with 6 to 18 and preferably contains 12 to 16 carbon atoms. 13. Impregnation agent according to claim 8 to 12, characterized draws that it contains dodecanol as pettalcohol. 909818/0095