DE1503898A1 - Cleaning or shear pad with at least one material web made of mixed fibers - Google Patents

Description

DR. W. SCHALK DIPL.-ING. PETER p

DIPL.-ING. GEM DANNENBERG DR. V. SCHMiBD-KCWABZIK t η,

OR. ESCHENHEIMER STR. 39 "~ * ~

11/22/65

FRANKFURT AM MAIN ' - ".— " ZZ ^ \\

OR. ESCHENHEIMER STR. 39 "~ * ~~~~ ——— J

Union Carbide Corporation New York / USA

Cleaning or scouring pad with at least one material web made of mixed fibers

The invention relates to a cleaning pad and / or scouring pad, in particular to such a cleaning pad or pad. Scrubbing pads that contain a detergent and off consist of a mixture of non-metallic fibers that are connected to one another in the form of a cushion.

In the older applications U 9452 Ic / 54c and TJ 11 719 Ic / 34o, those on December 10, 1962 and May 14, 1965 by the applicant have been submitted, cleaning and scouring cushions are described that are made of at least one piece of material made of non-woven, randomly oriented fibers, which on at least one of the side surfaces forming the cushion with a Rubbing or abrasive containing adhesive is provided, and a heat-adhesive synthetic resin is formed in the material piece are. The piece of material is cut through and attached

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heat sealed the interfaces, whereby the outer edge of the cushion is formed, so that this heat sealed edge the The shape of the pillow is determined. An essential feature of the pillows according to the earlier applications is based on concentration of glue on the surfaces of the material style or of the pieces of material that make up the cushion, in the preferred one Embodiment the smallest possible amount of adhesive is necessary for the formation of the pillow. The pillows can be made from a single layer of unwoven material or from more than consist of a layer of non-woven material, in particular two layers of non-woven material, which are heat-bonded to the outer surface forming a pocket in the pillow that can hold a solid detergent. To this Way, it is possible to make a pillow that can contain a significant amount of detergent, which enables effective cleaning over a longer period of time.

The object of the present invention is to provide an improvement in the production of a cleaning agent containing cleaning cushions and scouring pads. In particular, the invention is intended to provide a cleaning and scouring pad can be created in which significantly lower amounts of resin binder concentrations are used than with the above-mentioned pillows and even a smaller amount of detergent than those described in the earlier applications

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is required, yet the pad can be used for a longer period of time and an even greater amount of it is more effective Has a foam and cleaning effect than those previously described pans filled with plenty of soap or detergent, In comparison, the pads according to the invention can be lighter, but still use a considerably more effective amount of detergent have a regulated foaming effect, are also very easy to manufacture, can be used for cleaning and scrubbing Objects can be used over a longer period of time and are also considerably cheaper to manufacture.

A cleaning and / or scouring pad according to the invention made of at least a material web of mixed fibers is characterized in that the fibers by a solid dispersion of a Synthetic resin binder and a cleaning agent are bonded together. Preferably should be the one used for the pillow Material web be loose and made of non-metallic synthetic fibers in an arbitrary three-dimensional orientation exist.

It has been found that the presence of a solid wasoh or detergent in the forming pad The web of material contributes significantly to the strength of the pillow. One only bound by a solid detergent However, material web does not have any when cleaning and haying long life, and such a web should be additional and

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more stable terbindumgem, about through. Etmstlmr "foimdeiiittel _for embroidery and / or girls included.

It was surprisingly found that "with a solid mixture or" dispersion of a resin biming agent "and a cleaning agent in the cushion, the period of the actual effectiveness of the Seimigumgsmlttels is considerably extended, even if the amount of cleaning agent present in the cushion is considerable is less than at -ten. Earlier design cushions. When mixed with the synthetic resin in this way, the cleaning agent has a regulated foaming effect due to its - - ■ "dimensioning" in the most effective amounts. Keimigumgs --- - - * - means by "excessive foam development-or-sporadic" dissolving or washing away the detergent · - "- Has-so -in the pillow ^ · -anchored '· cleaning agent · ■ creates a - larger -and- ; -. '"more effective foam development and enables foam development" un # "relaution activity ilfeer greater" misery "than in the - --Ealley" where "that: Consolidation means within! the Saterialfeahii.- ■ ■ -'- imprlgnier'-t- - 'wtil- ■ -not with · - -the "larzMnäeai.ttel - connect - is · ^! ■ In addition .is -was-established", .- that-. these advantages even ' ■: - ■: - ■ erzieit-WerdlenV if, the-amount "of the KeijEiigiingsaittels-iBL-the ^ /.- pillow only about the' pins of the weight of the norealerw-else. in -, - ---. known b2EW · the mentioned earlier pillow, contained rhyming agent "is ·"

The use of a washing or cleaning agent or a Soap together with the resin binder to form a dispersion as defined herein also creates besides a flagellated foam or lye development, others Advantages For example, the cleaning agent of the Mate * rlalbahn are added during normal treatment, when the material web is treated with the binding agent to connect the fibers to one another. This creates a separate processing for the addition of soap or the like unnecessary. This advantage leads to a reduction in the number W of process steps required to manufacture such pillows and also represents a considerable saving in machine equipment, since only the normal, in the Production of a bound web of material used machines are necessary. Another advantage is the large number of Variations of the product possible at low cost. The same machine can be used to produce a variety of different Types of pillows can be used by just that Concentration and / or composition of the synthetic resin and / or φ the cleaning agent can be changed. Besides these advantages there is also a substantial reduction in material coats the manufacture of the pillow, as the cleaning agent, together with the resin binder, contributes to the strength of the pillow and often less of each of the two remedies is needed

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The cleaning agent can be introduced into the material web in various ways. For example, can the material "bans" by spraying, dipping or rolling a liquid coating from which! cleaning agents are provided * Instead of the material web only with the cleaning agent To treat alone, it can also be done with a liquid mixture are treated from the cleaning agent Tind the resin binder, "namely · either by spraying the mixture onto the Material web * by dipping the material web into the mixture or by an additional coating of the mixture, on the material web *

Other sweeps are also possible. For example, the web of material can first be injected with a liquid resin _{binder; then} , as long as the binder is still moist, a liquid cleaning agent is sprayed onto the web of material, which mixes with the resin binder be, and as long as the binder

is still moist, the material web can be dissolved in a solution of the Detergents are introduced, these procedures can be used can also be applied in many variations, for example the resin can be sprayed onto the material web and the treated material web then in a solution with the cleaning agent * This process can also be reversed by first washing the material web with the solution of the Cleaning agent and then with the liquid resin binder

is treated. A variety of additives. Cleaning agents and resin binders, can be carried out either by adding them at the same time or by adding both agents in stages of the custom of cleaning. Are you _f manner in which the resin binder and the cleaning agents are present in the web, can be widely varied to obtain the outlined here article.

From the above, it is evident that a multitude of ways is given to a solid Dispersion of the resin binder and a cleaning agent in introduce the web of material.

The term "dispersion" is used here as an intimate mixture of the Resin binder and the cleaning agent to be understood in such a way that a partially to completely uniform distribution the cleaning compound in the resin binder or a similar one Distribution of the resin binding compound in the cleaning compound is present The intimate mixture can be in the form of a homogeneous phase, where the files are in IOrm of a solution (either in solid or liquid state ^ e according to the stage of application) or by a rough distribution of the two masses

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among themselves. This also includes mixtures in the form of gelatinous mixtures or emulsions or solid suspensions the detergent and the resin binder. Generally speaking, the term "dispersion" here includes Mixtures in homogeneous and heterogeneous phases as opposed to a combination of one detergent and one Resin binder in the pillow with one or both parts separated be dried to come to a solid state, and each consequently only in a separate homogeneous phase therefore remains in contact with the other! part because both! parts are contained in the pillow.

The term "solid" is used here to define the state of the dispersion in a non-liquid and non-gaseous state Condition and includes gels, pulps, crystals and gelatinous Masses with a self-supporting determinable shape.

In a preferred embodiment of the invention, a loose material web becomes more mixed up, non-metallic Fibers used, which are arranged three-dimensionally over the entire length and width of the material web, and a variety of intercommunicating voids and a solid dispersion of a synthetic resin binder and a cleaning agent are present in the material web. The solid mixture or dispersion is in the material web mainly in the places where the fibers touch,

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while cavities are open and free for the passage of water are through the web of material. In fact, the voids in the material web can be practically free of the solid dispersion . be. In strong light, it is easy to see light penetrate through such webs of material, and a stream of water can pass through the cushion can be passed through essentially continuously. A cushion containing such a material web results Better cleaning of particularly dirty surfaces because the dirt is easily soaked up by the pillow and during of the flushing process is flushed away from it, especially if cleaning takes place together with simultaneous flushing. Such Material webs are preferably using a relatively thin cleaning agent in conjunction with the Resin binder to form the desired solid dispersion manufactured.

That used in forming the pillows according to the invention Material web is an unwoven layer of mixed up, non-metallic fibers with a minimum thickness of five times the diameter of the fibers contained therein smallest denier. The material web can, for example, have a thickness of at least 0.3 cm to 5 cm and more. Preferably the material web has a thickness of about 0.6 cm up to about 3.2 cm. Before treatment with the detergent and the binder, the web of material can be made with conventional machines for non-woven material .. The

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Layers of material can be carded, obtained by tearing or very loose, such as those described in U.S. Patent 2,784,132 issued March 5, 1957. The one made up of mingled fibers The material web can be opened with machines such as Garnett Kardiermasohinen or Ourlator Rando-Webbers (manufactured by by Curlator Corporation, East Rochester, N.Y., U.S.A. in their Bulletin 107 from 1963).

It is preferable to leave the unconnected sheet of material like this to make sure that when connected, it allows water to pass through easily. Therefore, the web of material should be used before joining of the strands together to create the most loose structure possible

sit.

The pairs used in the production of the material web < ^? ä;.; can pro- Pad: s a thickness of about 1 to about -400 .Denier c si: and 'own more, preferably from about β to "about 200 denier. The fibers can have a length in a range from 'about <0.6 cm to' 7.6 cm 'and more, preferably -from 1.2 cm to ¹ 1/2 cm * - ■ For the production of the web of material are suitable, inter alia, "the following ^" the ^'s invention in more detail illustrative fibers: cotton, mohair, yearling wool, (hog hair), silk _K wool, alpaca, vicuna, camel hair, rayon, viscose, Hylonpolyester, cellulose, polypropylene, copolymers of vinyl chloride and vinylidene chloride,

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Vinyl chloride modaeryls and acrylonitrile copolymers, polyacrylonitriles, Polyurethane-elastomeric spandex fibers, glass fibers and the like .. Synthetic fibers are particularly preferred over natural fibers because of their somewhat hydrophobic properties laser preferred. Natural pas, which do not have a particularly strong attraction for water, are also among the preferred Fibers. The strands can be straight, crimped and / or twisted, with crimped and / or twisted strands for the production of the material webs are preferred.

The preferred web of material in making the pads according to the invention is air-exposed staple fibers from about 0.6 cm to about 7.5 cm in length, preferably from. about 1.2 cm to 5 cm in length. A suitable method for the serial production of these material webs is the passage of such staple fibers through an Ourlator Rando-Webber machine. The web of material produced in this way comprises three-dimensionally and randomly oriented parsers are, which are by the way in which they are scrambled, ä held together. Such webs of material require further treatment, for example with resin binders, cleaning agents, needles and / or stitches, before they are suitable for handling.

A suitable cleaning agent should be such that it is introduced into the material web in a liquid state and there dries. The usual ones, for example from sodium, potassium

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or nitrogen-derived soaps, salts of fatty acids (for example, _#, the ammonium salts), typically about 12 to 20 atoms of carbon having "are particularly useful as cleansers on Reir in the pillow. These soaps can be introduced into the web of material with missing water, especially in the typical case that the soap is present in the gelatinous state as a micelle. However, soap solutions and coarse dispersions can also be used.

In addition, in the implementation of the invention, non-depreciable (npnybipdegradable) and biological _J; Cleaning agents are used * Diepe Reinigejiiiejen cationic, non-ionic and anionisphe ils? Me SginipingfBiittei we? 4es in fiiissigtro condition mi §9ll§n fo ^ ittgiweiu? to be able to attend the Jn. related to the most extreme gujtaiid? »Jn.

fii in flWg | if§ffl gwitanä stay, Mmm with the 4er Ii »fialwag-yfrwfsitt werel§ii _f in & m ii» »- nipinffiiittels an sioJi pit ap Ttrwendist. and this mixture is fed into the web of material. When the resin is dried, the cleaning agent becomes a component of the resin binder and is regarded as a solid for the purposes of the invention, since it is essentially in solution in the solid resin

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As mentioned above, the soaps and detergents can be used in conjunction with water. Besides that, it can Cleaning agents also in a solvent, for example halogenated solvents, mineral spirits, Stoddard solvents, aromatic hydrocarbons or Alkanes with between about 6 to 12 carbon atoms.

As the resin binder, any known binder for bonding fibers together can be used. The binder can be thermoplastic or thermoset, and the choice of binder is based on the particular use, for which the pillow is intended. For example, should the pillow only be used for cleaning and not for scrubbing softer binders can be used} these types, of binders are typically thermoplastic binders, which in the event that they are not soft enough at 100% solids can be plasticized until they are suitable for the desired use have reached the required degree of softness. When the only resin binder present in the material web also aims to provide a heat-sealed hand for To form the cushion, it is particularly desirable to use a fusible, and thus thermoplastic, binder. If the binding agent has the task of holding abrasive particles (gravel sand or the like) in the cushion, the selected one should be The binding agent must be such that the abrasive parts ohen

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be held firmly. The thermosetting binders are most suitable for this purpose, although the thermoplastic ones are also Binders work well for this purpose. In the event that the pad is intended for intensive scrubbing, a thermosetting binder is quite preferred.

To further explain the invention, reference is made below to exemplary embodiments according to the drawing.

Fig. 1 shows schematically a method of manufacturing cushions according to the invention;

Fig. 2 schematically shows a further possible manufacturing method;

3 shows a perspective view of a cushion according to the invention composed of only one layer, and ■■ - ■. · ■ · - ■

- · ■ ■ - ■■■. . . · ■

Figure 4 shows a cross section along the line 4-4 of Fig. 3.

In Fig. 1 is a schematic production method for webs of material shown, which are suitable for the production of the scouring pads according to the invention. From a ranso webber A. goes a loose, unwoven, three-dimensional, from arbitrary

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oriented fibers and is ■ for example on an endless conveyor belt, a chain or the like. To the intended for spraying, roller coating or immersion zone B, where a liquid mixture of a thermoplastic, thermosetting yinylochloride-methylacrylatoopolymer latex with a! cleaning agent such as sodium deeyl pure benzene sulfonate », is introduced into the material web. The mixture is formed from equal weight parts of the copolymer and the detergent in an amount of water equal to the weight of each of the components. The delivery of the mixture to the material web in zone B can be done either by spraying the mixture onto the material web, by rolling it on or by dipping the material web into a container with the mixture using, for example, a typical for this purpose ^ saturation apparatus * Yakuum ^ gättigungsiapparate or simple Durcjji ^ fgn of Mat @ ri & lbi & n through a li§§touag fgfüll-tfn fank that is fluid with dgr, is called EintÄhmethQde epften · We b§handeit§ Mat§ri & lb.ahn becomes dsm vq & the % §m I stt ίΙ · 3Ρ nrfeitstin Zöüae Q g ^ performs »trkömBiltQ & eii I # i | luft« © / de? Infra3? © t ei? I # r femptratur of about 10 ⁹ 0, after which this is eliminated and the solid dispersion of the copolymer and the cleaning agent comes into a dry and solid state. Thereafter, the material web is passed on the conveyor belt from the zone C to a further endless conveyor belt, wherein the material web is turned over in this conveyor belt exchange ₉ is then passed into a treatment zone D in which

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an aqueous mixture of the same cleaning agent, of a thermosetting melamine-formaldehyde synthetic resin, a copolymerisohen ethyl acrylate, butylaerylate and aoryl acid synthetic resin and an abrasive, such as aluminum oxide, silicon carbide and the like, either sprayed onto the material web or by means of a roller or through Immersion of the material web is applied. The material web is then passed to the heating zone E, which is also at around 120 ⁰ O and in which the resin is dried, any solvent, such as water, evaporates and a solid mixture or dispersion of thermosetting synthetic resin, the cleaning agent, on the material web - and the abrasive remains. The material web can then be ^{passed on to zone i 1} , where it is rolled up and stored. Instead of zone F it can also be fed to zone G, where it is simultaneously heat-glued and cut in a dielectric heat-sealing press, in that the press dies simultaneously cut the material web and form a heat-sealed edge around the outer surface of the resulting cushion.

In Fig. 2 the Rando-Webber machine of zone A becomes a material web made of nylon fibers led out, the 7.5 parts by weight of 15 denier polyhexamethylene adipamide fiber, 1.5 parts of 15 to 25 denier polyhexamethylene adipamide fiber and 1 part of 25 denier Has polyethylene terephthalate fiber

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The material web is then directed to the zone S, where they either injected with the aqueous mixture, roll coated or immersed in this mixture consisting of a detergent or soap such as sodium alkyl monobenzene sulfonates or sodium salts of fatty acids such as sodium oleates. The mix can be a gelatinous (colloidal) solution. As a suitable amount of soap or detergent are in the web of material about 60 to 180 cm per square yard of the material. While the material web is still damp from the liquid soap or cleaning agent, it is sealed with a hot-melt adhesive Resin sprayed in zone T, for example a vinyl chloride-methyl acrylate copolymer (80 mol per 100 Parts vinyl chloride). Instead of applying the hot-melt adhesive resin to the hot material web by injection or roller coating, this can also be dipped in an aqueous latex of the hot-melt adhesive. A suitable amount of Resin in the sheet of material is about 85 grams (3 ounces) of hot melt resin per square yard of material.

The method shown schematically in Mg, 2, a cleaning agent or to apply a soap by spraying or roller coating to the material web or to dew the material web in it, followed by the application of the heat-sealing resin while the material web is still free from the soap or the Detergent is, leads to the manufacture of a solid

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Dispersion according to the invention. In the typical case, however, it is desirable that between the soap "and the detergent and the heat-adhesive resin, as described above, there is compatibility,

After the zone T, the material web is introduced into the heating zone TJ, which consists of a furnace heated by compressed air or infrared or a combination of infrared heating and compressed air. The temperature of the oven can be between about 45 ^° C. and 175 ^° C., preferably about 80 ^° C. The product coming out of the oven can optionally be guided back via the conveyor belt R to the zones S, T and U, to be treated again. In the preferred embodiment of this invention, the material web is turned over before the renewed treatment, so that a particularly uniform and complete treatment takes place,. "; = _; -:

After passing through the zone U, the dry and treated web of material in the zone Z either, for example, in Oval or slab shape for further processing into one later collected or at the same time hot-glued and cut to cleaning cushions according to the invention to form, preferably using the hot-melt adhesive and sons method described. As an alternative, the The web of material can also be turned over and conveyed from Zone U to Zone V, where it is treated with a mixture of thermosetting

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Resin, an abrasive and a cleaning agent is, again either by injection or roll coating or by dipping the web of material into the Mixture. Instead of treating the material web with such a mixture and a cleaning agent, the substances can also be added in stages, as shown for example by means of zones S and T. The abrasive is preferred added with the resin. From the zone V, the treated material web is conveyed to the heating zone W, which is on a temperature in the range described in Zone U is maintained. The laser track is then transported to a zone X, in which the cutting and heat gluing takes place at the same time. The resulting cushions become in zone Y to Storage and collected for shipping.

In Pig. 3 and 4 an embodiment of a cleaning and scouring pad according to the invention is described. As mentioned, the cushion can take many forms, for example also consist of more than one material layer and / or pocket-like be trained. G-according to the specific embodiment 3 and 4, a simple non-woven Pas ermat opal layer 1 is shown, the non-metallic lasers 3 contains and which has a hot-melt adhesive edge 2 on the outside, which determines the shape of the cushion * The solid dispersion 4 is made of it hot adhesive resin and a detergent concentrated on the surface of the cushion 1, but less

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Dimensions is also distributed over the entire cushion 1, and thereby causes the connection of the fibers in the cushion. In addition, the solid dispersion 4 is in a more concentrated form on the outer edge of the cushion 2, where the material is heat-bonded. This concentration is due to the confluence of the Resin due to the heat when cutting. Instead of using the pad mixed soap can with the heat-sealable resin on the edge od. Like. From the resin, separated, however, the separate quantity is practically tk minimal compared with the total amount of the blended with the resin binder in the whole pad soap.

As shown in Figures 3 and 4, the resin is on the surfaces the web of material more concentrated; however, this need not be so, since the invention is also essentially one allows uniform distribution of the solid dispersion over the entire material. A substantially even distribution can be achieved very easily if the material web is mixed with soap or detergent and resin binding agent.

^{w is} dipped medium or by spraying a considerable amount of the mixture onto the material web or applying it by means of a roller.

. Located on the surface of the material web according to FIGS. 3 and 4 the solid dispersion 5, which additionally contains abrasive particles

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contains. This dispersion 5 can be evenly distributed throughout the Kigsen, although it is preferable that one such a mixture containing abrasive particles is more concentrated on at least one of the surfaces of the cushion is.

- Expectations -

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Claims (1)

Claims Putz- b2! W »Soheu cushion with at least one sheet of material from mixed fibers, which contains a solid detergent and a synthetic resin binder, daduroh marked, that the fibers of the material web (1) through a solid dispersion (4) of the resin binder and the detergent are connected to each other. 2, cushion according to claim 1, characterized in that a The heat-sealed outer edge (2) extends around the pillow and determines its shape. 3. Cushion according to claim 1 or 2, characterized in that that the material web (1) is loose and made of synthetic Fibers (3) with an arbitrary three-dimensional orientation consists. 4e pillow according to one of the preceding claims, characterized by that solid Sckeuerpartikel in the wet dispersion (5) of the resin binder and the cleaning agent are included Patent attorney 909819/00 63